Air conditioner outdoor unit

Abstract

The invention relates to the technical field of household appliances, and discloses an air conditioner outdoor unit provided with a defrosting area. The air conditioner outdoor unit comprises an outdoor heat exchanger, a temperature sensor and a pressure sensor. The outdoor heat exchanger is provided with a coil pipe and a defrosting area. The temperature sensor is used for detecting the temperature of the coil pipe. The pressure sensor is used for detecting the pressure value of the defrosting area. In this way, under the condition that the temperature sensor detects that the temperature of the coil pipe meets the defrosting temperature, the defrosting assembly can be controlled to defrost the defrosting area. And under the condition that the temperature of the coil pipe does not meet the defrosting requirement, the pressure value of the defrosting area can be detected through the pressure sensor. And under the condition that the pressure value of the defrosting area meets the defrosting pressure value, the pressure sensor can control the defrosting assembly to defrost the defrosting area. Through the arrangement, whether defrosting of the outdoor unit of the air conditioner is completed or not can be detected more accurately, the situation that the heating effect of the air conditioner is poor due to incomplete defrosting is avoided, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, for example, to an air conditioner outdoor unit. Background Art

[0002] At present, air conditioners have been widely used in people's daily lives. When the air conditioner is turned on in heating mode, the refrigerant passes through the compressor to become high-pressure gas, and then passes through the indoor heat exchanger component to condense and release heat to become high-pressure liquid refrigerant. After the high-pressure liquid refrigerant passes through the throttling device to become a low-temperature and low-pressure liquid refrigerant, it evaporates and absorbs heat through the outdoor heat exchanger component and finally flows back to the compressor; when the air conditioner is turned on in cooling mode, the refrigerant flow path is changed through the four-way reversing valve, and the refrigerant evaporates and absorbs heat in the indoor heat exchanger component and condenses and releases heat in the outdoor heat exchanger component. Therefore, the working efficiency of the outdoor heat exchanger will affect the overall cooling or heating efficiency of the air conditioner.

[0003] In order to prevent the air conditioner outdoor unit from frosting and affecting the working efficiency of the outdoor heat exchanger, the existing air conditioner outdoor unit is provided with a temperature sensor for detecting whether the air conditioner outdoor unit is frosted, so as to control the air conditioner to turn on or off the defrost mode.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The existing air-conditioning outdoor unit provided with a temperature sensor cannot accurately detect whether the air-conditioning outdoor unit has completed defrosting, and there is a situation where defrosting is incomplete, resulting in poor air-conditioning heating effect and reducing the user experience.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides an air-conditioning outdoor unit, which can accurately detect whether the air-conditioning outdoor unit has completed defrosting, thereby avoiding the situation where the air-conditioning heating effect is poor due to incomplete defrosting, thereby improving the user experience.

[0009] The embodiment of the present disclosure provides an air conditioner outdoor unit provided with a defrost area. The air conditioner outdoor unit includes an outdoor heat exchanger, a temperature sensor and a pressure sensor. The outdoor heat exchanger is provided with a coil and a defrost area. The temperature sensor is used to detect the temperature of the coil. The pressure sensor is used to detect the pressure value of the defrost area. The coil temperature and the defrost area pressure value are used to control the outdoor heat exchanger to start or stop defrosting the defrost area.

[0010] In some embodiments, the defrost area is provided with a plurality of area units. The air conditioner outdoor unit further comprises a defrost assembly. The defrost assembly is provided with a plurality of defrost units corresponding to the area units, for defrosting the corresponding area units.

[0011] In some embodiments, the detection component includes a plurality of pressure sensors disposed corresponding to the area units, and the pressure sensors are used to detect pressure values ​​of the corresponding area units.

[0012] In some embodiments, the defrost unit is an electric heating element for heating the zone unit.

[0013] In some embodiments, the number of the defrost units is greater than the number of the zone units, so that a plurality of defrost units are disposed in a single zone unit.

[0014] In some embodiments, when a plurality of defrost units are arranged in the zone unit, the defrost assembly further comprises an electrical connector, which is used to connect the plurality of defrost units in the zone unit so that the defrost units are in circuit connection.

[0015] In some embodiments, the electrical connector is a metal buckle, wherein two ends of the metal buckle can be respectively buckled to two adjacent defrost units to electrically connect the two adjacent defrost units.

[0016] In some embodiments, a clamping protrusion is provided at the end of the metal buckle, and a clamping groove is provided in the defrosting unit, wherein the clamping protrusion can be clamped in the clamping groove, so that the end of the metal buckle is clamped in the defrosting unit.

[0017] In some embodiments, the air conditioner outdoor unit further comprises a heat dissipation device. The heat dissipation device is arranged at a position corresponding to the outdoor heat exchanger and the defrosting area, and is used to install an electric heating element. The electric heating element is a superconducting alloy fin.

[0018] In some embodiments, the heat dissipation device is provided with a plurality of heat dissipation fins, wherein the electric heating elements are evenly arranged between the heat dissipation fins.

[0019] An air conditioner outdoor unit provided by the embodiment of the present disclosure can achieve the following technical effects:

[0020] The embodiment of the present disclosure provides an air-conditioning outdoor unit provided with a defrost area. The air-conditioning outdoor unit includes an outdoor heat exchanger, a temperature sensor and a pressure sensor. The outdoor heat exchanger is provided with a coil and a defrost area. The temperature sensor is used to detect the temperature of the coil. The pressure sensor is used to detect the pressure value of the defrost area. Among them, the coil temperature and the defrost area pressure value are used to control the outdoor heat exchanger to start or stop defrosting the defrost area. In this way, when the temperature sensor detects that the coil temperature meets the defrost temperature, the defrost component can be controlled to defrost the defrost area. When the coil temperature does not meet the defrost and defrost requirements, the pressure value of the defrost area can be detected by the pressure sensor. When the pressure value of the defrost area meets the defrost pressure value, the pressure sensor can control the defrost component to defrost the defrost area. With such a setting, it is possible to more accurately detect whether the air-conditioning outdoor unit has completed defrosting, thereby avoiding the situation where the air-conditioning heating effect is poor due to incomplete defrosting, thereby improving the user experience.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of an air-conditioning outdoor unit provided by an embodiment of the present disclosure;

[0024] Figure 2 is a structural schematic diagram of an outdoor heat exchanger provided by an embodiment of the present disclosure;

[0025] Figure 3 is a partial structural schematic diagram of an outdoor heat exchanger provided by an embodiment of the present disclosure;

[0026] Figure 4 is a structural schematic diagram of another outdoor heat exchanger provided by an embodiment of the present disclosure;

[0027] Figure 5 is a schematic structural diagram of an electrical connector provided by an embodiment of the present disclosure;

[0028] Figure 6 is a schematic structural diagram of another electrical connector provided by an embodiment of the present disclosure;

[0029] Figure 7 It is a schematic diagram of the structure of an electric heating element provided in an embodiment of the present disclosure.

[0030] Reference numerals:

[0031] 10: outdoor heat exchanger; 11: regional unit; 20: heat dissipation device; 31: electric heating element; 311: snap-fit ​​groove; 32: heat dissipation fin; 40: electrical connector; 41: snap-fit ​​body; 42: snap-fit ​​protrusion; 50: pressure sensor. DETAILED DESCRIPTION

[0032] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0033] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0034] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0035] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0036] Unless otherwise stated, the term "plurality" means two or more.

[0037] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0038] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0040] The principle of air conditioning heating is to absorb the heat of outdoor air and transfer it to the indoor room for release. Because the heat exchange system quickly takes away the heat absorbed by the air conditioner outdoor unit, the temperature of the air conditioner outdoor unit drops and the moisture in the air condenses into frost. If the air conditioner outdoor unit is frosted, it will affect the heating effect of the air conditioner. Therefore, if the air conditioner detects that the outdoor unit is frosted, it will stop heating and enter the defrost mode to heat and defrost the air conditioner outdoor unit. After defrosting is completed, the air conditioner will exit the defrost mode and re-enter the heating mode to ensure the user experience.

[0041] At present, a temperature sensor is generally installed on the outdoor unit of the air conditioner to detect the temperature of the outdoor heat exchanger coil and determine whether the outdoor unit of the air conditioner is frosted based on the temperature of the coil. However, the temperature at different positions of the coil is different, which may result in the outdoor unit of the air conditioner not being completely defrosted, but the temperature sensor determines that defrosting is complete. At this time, the air conditioner will exit the defrost mode and re-enter the heating mode, causing the outdoor unit of the air conditioner to run with frost. This will not only reduce the heating effect of the air conditioner, but also increase power consumption.

[0042] In order to solve the above problems, currently, after the temperature sensor determines that defrosting is completed, the defrosting mode will continue to run for a certain period of time to prevent the air conditioner outdoor unit from running with frost. However, due to the increased defrosting time, the heating effect is still poor and the power consumption is increased.

[0043] like Figures 1 to 7 As shown, the embodiment of the present disclosure provides an air conditioner outdoor unit provided with a defrost area. The air conditioner outdoor unit includes an outdoor heat exchanger 10, a temperature sensor and a pressure sensor 50. The outdoor heat exchanger 10 is provided with a coil and a defrost area. The temperature sensor is used to detect the temperature of the coil. The pressure sensor 50 is used to detect the pressure value of the defrost area. Among them, the coil temperature and the defrost area pressure value are used to control the outdoor heat exchanger 10 to start or stop defrosting the defrost area.

[0044] Specifically, a temperature sensor (not shown in the figure) is arranged at a position corresponding to the coil and is used to detect the temperature of the coil. When the temperature of the coil is less than the preset temperature, the temperature sensor determines that the defrost area is frosted and controls the outdoor heat exchanger 10 to defrost the defrost area. When the temperature of the coil is greater than or equal to the preset temperature, the pressure value of the defrost area is detected by the pressure sensor 50. If there is frost in the defrost area, pressure is applied to the pressure sensor 50. Therefore, if the pressure sensor 50 detects that the pressure value is greater than or equal to the preset pressure value, it is determined that the defrost area is frosted, and the outdoor heat exchanger 10 is controlled to defrost the defrost area. If the pressure sensor 50 detects that the pressure value is less than the preset pressure value, it is determined that the defrost is completed, and the outdoor heat exchanger 10 is controlled to exit the defrost mode. In this way, the temperature sensor and the pressure sensor 50 can be used to simultaneously determine whether the air conditioner outdoor unit has completed defrosting, thereby avoiding the situation where the air conditioner heating effect is poor due to incomplete defrosting, thereby improving the user experience.

[0045] Meanwhile, if the air conditioner outdoor unit is not seriously frosted, the temperature sensor may not be triggered. At this time, the defrost area can be detected by the pressure sensor 50 to avoid the air conditioner outdoor unit from running with frost.

[0046] It is understandable that current air conditioners are generally provided with a variety of defrost modes. If the temperature of the coil is lower than the preset temperature, it means that the frosting of the air conditioner outdoor unit is relatively serious. At this time, the defrost mode with higher air conditioner operation efficiency can be controlled. If the coil temperature is greater than or equal to the preset temperature, and the pressure value is greater than or equal to the preset pressure value, it means that the frosting of the air conditioner outdoor unit is relatively light. At this time, the defrost mode with lower air conditioner operation energy consumption can be controlled. If the coil temperature is greater than or equal to the preset temperature, and the pressure value is less than the preset pressure value, it can be judged that the defrosting is completed. Such a setting can make the air conditioner more intelligent.

[0047] In practical applications, the defrost area can be set as needed at a location where frost is likely to occur, such as the housing of the air-conditioning outdoor unit, the coil of the outdoor heat exchanger 10 or the heat dissipation fins 32.

[0048] Optionally, the preset temperature is less than or equal to -15° C. and greater than or equal to -20° C. For example, the preset temperature may be -15° C., -16° C., -17° C., -18° C., -19° C. or -20° C.

[0049] Optionally, the preset pressure value is greater than or equal to 10 g / cm 2 , and less than or equal to 50g / cm 2 For example, the preset pressure value may be 10 g / cm 2 , 20g / cm 2 、30g / cm 2 , 40g / cm 2 or 50g / cm 2.

[0050] like Figures 2 to 4 As shown, in some embodiments, the defrosting area is provided with a plurality of regional units 11. The air conditioner outdoor unit further comprises a defrosting assembly. The defrosting assembly is provided with a plurality of defrosting units corresponding to the regional units 11, for defrosting the corresponding regional units 11.

[0051] Specifically, the pressure sensor 50 is electrically connected to the defrost unit, and can control the defrost unit to defrost the zone unit 11. At least one defrost unit is provided in each zone unit 11. If the pressure sensor 50 detects that any zone unit 11 is frosted, the corresponding defrost unit can be controlled to defrost the zone unit 11.

[0052] It is understandable that the defrost area of ​​the air conditioner outdoor unit may be partially frosted. At this time, if global defrosting is performed through the outdoor heat exchanger 10, it will not only affect the defrosting efficiency, but also increase the energy consumption during defrosting. Dividing the defrost area into multiple area units 11 and providing a defrost unit in each area unit 11 can only defrost the area unit 11 where frosting occurs, so as to achieve more precise control.

[0053] Optionally, the defrost assembly and the outdoor heat exchanger 10 can both independently defrost the defrost area. In this way, when the coil temperature cannot trigger the temperature sensor, the pressure sensor 50 can be used to detect whether frost occurs in the defrost area. If the pressure sensor 50 detects that frost occurs in the defrost area, the defrost assembly can be controlled to defrost the defrost area. With this arrangement, the defrost area can be defrosted while the air conditioner remains in heating mode, further improving the user experience.

[0054] like Figure 2 and Figure 3 As shown, in some embodiments, the detection component includes a plurality of pressure sensors 50 arranged corresponding to the regional units 11 , and the pressure sensors 50 are used to detect the pressure values ​​of the corresponding regional units 11 .

[0055] Specifically, the pressure sensor 50 is electrically connected to the defrost unit in the zone unit 11. The pressure sensor 50 and the defrost unit between each zone unit 11 are independently arranged. In this way, if any pressure sensor 50 detects that the zone unit 11 is frosted, the defrost unit in the zone unit 11 can be controlled to defrost independently. Such arrangement can further improve the accuracy of defrosting.

[0056] In some practical applications, each zone unit 11 is provided with a pressure sensor 50, and the pressure sensor 50 is electrically connected to the corresponding defrosting unit, respectively. This arrangement can improve the accuracy of defrosting.

[0057] like Figure 2 As shown, in other practical applications, if the temperatures of multiple regional units 11 are different, the user can only set the pressure sensor 50 in the regional unit 11 with a lower temperature, and the pressure sensor 50 is electrically connected to the corresponding defrosting unit. It can be understood that if the temperatures of multiple regional units 11 are different, the lower the temperature of the regional unit 11, the more serious the frost. Therefore, if the regional unit 11 with a lower temperature is defrosted, it can be determined that the other regional units 11 are also defrosted. With such a configuration, the number of pressure sensors 50 can be reduced to reduce costs.

[0058] In some embodiments, the defrost unit is an electric heating element 31 for heating the zone unit 11 .

[0059] Specifically, the air conditioner outdoor unit is also provided with a corresponding circuit for supplying power to the electric heating element 31. If frost occurs in the zone unit 11, the corresponding electric heating element 31 can heat and defrost the zone unit 11. In this way, the defrosting of the zone unit 11 can be completed while the air conditioner is kept in the heating mode.

[0060] like Figures 2 to 4 As shown, in some embodiments, the number of defrost units is greater than the number of zone units 11 , so that a plurality of defrost units are disposed in a single zone unit 11 .

[0061] Specifically, when the pressure sensor 50 detects that frost has occurred on the zone unit 11, a plurality of defrost units may be controlled to defrost the zone unit 11 simultaneously to improve the defrosting efficiency.

[0062] like Figures 2 to 4 As shown, in some embodiments, when multiple defrost units are provided in the zone unit 11, the defrost assembly further includes an electrical connector 40. The electrical connector 40 is used to connect the multiple defrost units in the zone unit 11 so that the defrost units are in circuit connection.

[0063] Specifically, when multiple defrost units are provided in the zone unit 11, the multiple defrost units are connected in series through the electrical connector 40. In this way, the pressure sensor 50 can simultaneously trigger multiple defrost units in a single zone unit 11 to further ensure defrost efficiency.

[0064] like Figure 3 As shown, in some embodiments, the electrical connector 40 is a metal buckle, wherein two ends of the metal buckle can be respectively buckled to two adjacent defrost units to electrically connect the two adjacent defrost units.

[0065] Specifically, the two ends of the metal buckle are respectively connected to the two defrost units. In this way, not only can the two defrost units be electrically connected, but also the defrost units can be fixed by the metal buckle to avoid displacement of the defrost units and reduce the defrost effect.

[0066] In practical applications, the air conditioner outdoor unit is also provided with a corresponding circuit. The first defrost unit in the zone unit 11 is electrically connected to the circuit, the adjacent defrost units are electrically connected via metal buckles, and then the last defrost unit is electrically connected to the circuit to form a series loop.

[0067] Optionally, an insulating structure is provided around the metal buckle to avoid leakage. For example, the side surface of the metal buckle is coated with an insulating material such as a rubber layer.

[0068] like Figures 5 to 7 As shown, in some embodiments, the end of the metal buckle is provided with a snap-on protrusion 42. The defrost unit is provided with a snap-on groove 311. The snap-on protrusion 42 can be snap-on to the snap-on groove 311, so that the end of the metal buckle is snap-on to the defrost unit.

[0069] Specifically, the metal buckle includes a buckle body 41. The end of the buckle body 41 corresponding to the defrost unit extends toward the defrost unit to form a buckle protrusion 42, and a buckle groove 311 is provided at a position corresponding to the defrost unit and the buckle protrusion 42. Figures 5 to 7 The metal buckle can be clamped to the defrost unit through the clamping protrusion 42 and the clamping groove 311 to prevent the metal buckle from being separated from the defrost element, thereby improving the stability of the connection between the metal buckle and the defrost unit.

[0070] like Figure 4 As shown, in some embodiments, the air conditioner outdoor unit further includes a heat sink 20. The heat sink 20 is disposed at a position corresponding to the defrosting area of ​​the outdoor heat exchanger 10 and is used to install an electric heating element 31. The electric heating element 31 is a superconducting alloy fin.

[0071] Specifically, the heat sink 20 is used to dissipate heat from the outdoor heat exchanger 10 to improve the heat exchange efficiency of the outdoor heat exchanger 10. The superconducting alloy fins are arranged on the heat sink 20. When the air conditioner outdoor unit is frosted, the superconducting alloy fins can be used to heat and defrost the defrost area. When the air conditioner outdoor unit is operating normally, the superconducting alloy fins can be used to dissipate heat from the outdoor heat exchanger 10. Such an arrangement can not only realize electric heating and defrosting of the defrost area, but also improve the heat exchange efficiency of the outdoor heat exchanger 10.

[0072] like Figure 2 and Figure 4As shown, in some embodiments, the heat dissipation device 20 is provided with a plurality of heat dissipation fins 32 , wherein the electric heating elements 31 are evenly arranged between the heat dissipation fins 32 .

[0073] Specifically, the superconducting alloy fins are evenly arranged between the heat dissipation fins 32 , so as to improve the heat exchange efficiency of the outdoor heat exchanger 10 .

[0074] It is understandable that the general heat sink fins 32 are made of aluminum foil, and their thermal conductivity is about 15%. However, the thermal conductivity of the superconducting alloy provided in the present application can reach 95%, which is higher in thermal efficiency and more energy-saving than the traditional heat sink fins 32.

[0075] In actual applications, the number of defrost units in different area units 11 may be the same or different, and the user may set it according to the actual frosting situation.

[0076] Optionally, the heat sink fins 32 are provided with an avoidance structure. When the superconducting alloy fins are arranged between the heat sink fins 32 and the end of the metal buckle is clamped to the superconducting alloy fins, the metal buckle corresponds to the avoidance structure of the heat sink fins 32 to avoid interference between the heat sink fins 32 and the metal buckle.

[0077] Specifically, avoidance grooves are provided at positions of the heat dissipation fins 32 corresponding to the metal buckles, and the metal buckles can be embedded in the avoidance grooves to avoid interference between the metal buckles and the heat dissipation fins 32 .

[0078] Optionally, an insulating structure is provided on the circumference of the superconducting alloy fin to avoid leakage. For example, the side surface of the superconducting alloy fin is coated with an insulating material such as a rubber layer.

[0079] In the above embodiment, the connection between the metal clip and the superconducting alloy fin is exposed to ensure that the metal clip and the superconducting alloy fin are in an electrically connected state.

[0080] In some practical applications, the outdoor unit of the air conditioner includes an outdoor heat exchanger 10, a temperature sensor, a pressure sensor 50, a heat sink 20, and a superconducting alloy fin disposed on the heat sink 20. The outdoor heat exchanger 10 is provided with a defrosting area, and the heat sink 20 is disposed at a position of the outdoor heat exchanger 10 corresponding to the defrosting area. The defrosting area is provided with a plurality of area units 11, each of which is provided with a pressure sensor 50, and the pressure sensor 50 is electrically connected to the superconducting alloy at the corresponding position. The temperature sensor is disposed on the outdoor heat exchanger 10, and is used to detect the temperature of the coil of the outdoor heat exchanger 10. When the coil temperature is less than the preset temperature, the temperature sensor determines that the frosting is more serious and controls the outdoor heat exchanger 10 to heat and defrost the defrosting area. When the coil temperature is greater than or equal to the preset temperature, the pressure value of the area unit 11 can be detected by the pressure sensor 50. When the pressure value of the area unit 11 is greater than or equal to the preset pressure value, the pressure sensor 50 determines that the area unit 11 is frosted and controls the corresponding superconducting alloy to heat and defrost the area unit 11.

[0081] In the above embodiment, the pressure sensor 50 can be used to periodically detect the pressure value of the zone unit 11 to determine whether frost occurs in the zone unit 11. Alternatively, when the outdoor heat exchanger 10 completes heating and defrosting the defrosting zone and the coil temperature is restored to a temperature greater than or equal to a preset temperature, the pressure sensor 50 can be controlled to detect the pressure value of the zone unit 11 to avoid the situation where the outdoor heat exchanger 10 is not running with frost due to unclean defrosting.

[0082] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air conditioner outdoor unit, provided with a defrost area, characterized in that: include: An outdoor heat exchanger is provided with a coil; Temperature sensor, used to detect the temperature of the coil; and, A pressure sensor is used to detect the pressure value of the defrost area; The coil temperature and the defrost zone pressure value are used to control the outdoor heat exchanger to start or stop defrosting the defrost zone.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The defrost area is provided with a plurality of area units; the air conditioner outdoor unit also includes: The defrost assembly is provided with a plurality of defrost units corresponding to the zone units, and is used for defrosting the corresponding zone units.

3. The air conditioner outdoor unit according to claim 2, characterized in that: The number of pressure sensors corresponds to the number of regional units, and the plurality of pressure sensors are respectively arranged in the plurality of regional units; The pressure sensor is used to detect the pressure value of the corresponding regional unit.

4. The air conditioner outdoor unit according to claim 2, characterized in that: The defrost unit is an electric heating element used to heat the zone unit.

5. The air conditioner outdoor unit according to claim 4, characterized in that: The number of the defrost units is greater than the number of the zone units, so that a plurality of defrost units are arranged in a single zone unit.

6. The air conditioner outdoor unit according to claim 5, characterized in that: In the case where a plurality of defrost units are arranged in the zone unit, the defrost assembly further comprises: The electrical connector is used to connect multiple defrost units in the zone unit so that the defrost units are in a circuit connection state.

7. The air conditioner outdoor unit according to claim 6, characterized in that: The electrical connector is a metal buckle; Wherein, two ends of the metal buckle can be respectively clamped on two adjacent defrost units to electrically connect the two adjacent defrost units.

8. The air conditioner outdoor unit according to claim 7, characterized in that: The end of the metal buckle is provided with a snap-on protrusion; and, The defrosting unit is provided with a snap-in groove; The clamping protrusion can be clamped in the clamping groove, so that the end of the metal buckle is clamped in the defrosting unit.

9. The air conditioner outdoor unit according to claim 4, characterized in that: Also includes: A heat dissipation device is arranged at a position corresponding to the outdoor heat exchanger and the defrosting area and is used to install an electric heating element; Wherein, the electric heating element is a superconducting alloy fin.

10. The air conditioner outdoor unit according to claim 9, characterized in that: The heat dissipation device is provided with a plurality of heat dissipation fins; Wherein, the electric heating elements are evenly arranged between the heat dissipation fins.

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